:root {
  --page: #f4f6f1;
  --surface: #ffffff;
  --ink: #102019;
  --muted: #5e6d65;
  --accent: #087a4b;
  --accent-dark: #075f3c;
  --line: #dce4de;
  --soft: #e8efe9;
  --radius: 16px;
  --shell: 1184px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible {
  outline: 3px solid rgba(8, 122, 75, 0.35);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 8px 16px;
  border-radius: 999px;
  color: #fff;
  background: var(--ink);
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(calc(100% - 48px), var(--shell));
  margin-inline: auto;
}

.preview-bar {
  display: flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 6px 20px;
  color: #fff;
  background: var(--ink);
  font-size: 13px;
  line-height: 1.4;
  letter-spacing: 0.04em;
}

.preview-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #93e6b6;
}

.site-header {
  border-bottom: 1px solid rgba(16, 32, 25, 0.09);
}

.header-inner {
  display: grid;
  min-height: 88px;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.brand {
  display: inline-flex;
  width: fit-content;
  align-items: baseline;
  gap: 10px;
}

.brand-logo {
  display: block;
  width: 138px;
  height: auto;
}

.brand-cn {
  font-size: 26px;
  font-weight: 500;
  letter-spacing: -0.05em;
}

.brand-en {
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 36px;
  color: var(--muted);
  font-size: 15px;
}

.desktop-nav a,
.header-action {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
}

.desktop-nav a,
.header-action {
  transition: color 160ms ease;
}

.desktop-nav a:hover,
.header-action:hover {
  color: var(--accent);
}

.header-action {
  justify-self: end;
  padding: 9px 0;
  border-bottom: 1px solid var(--ink);
  font-size: 14px;
  font-weight: 500;
}

.hero {
  padding: 88px 0 104px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(380px, 0.72fr);
  grid-template-areas: "copy panel" "media media";
  align-items: center;
  gap: clamp(56px, 8vw, 112px);
}

.hero-copy { grid-area: copy; }
.hero-grid .information-panel { grid-area: panel; }
.hero-grid .home-hero-media { grid-area: media; margin-top: 0; }

.home-hero-media,
.outline-visuals {
  margin-top: 64px;
}

.home-hero-media picture,
.outline-visuals picture {
  display: block;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--soft);
}

.home-hero-media img,
.outline-visuals img {
  display: block;
  width: 100%;
  height: auto;
}

.home-hero-media img,
.outline-hero-picture img {
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.outline-visuals.has-supporting {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(0, 0.75fr));
  align-items: stretch;
  gap: 18px;
}

.outline-visuals.has-supporting .outline-hero-picture img,
.outline-supporting-picture img {
  height: 100%;
}

.outline-visuals.supporting-only {
  display: block;
  max-width: 420px;
}

.outline-visuals.supporting-only img {
  height: auto;
  aspect-ratio: auto;
}

.outline-supporting-picture img {
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.eyebrow,
.section-label,
.panel-kicker {
  margin: 0;
  color: var(--accent);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin: 22px 0 28px;
  font-size: clamp(48px, 5.35vw, 76px);
  font-weight: 500;
  line-height: 1.11;
  letter-spacing: -0.055em;
}

.hero-lead {
  max-width: 640px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.78;
}

.hero-philosophy {
  display: block;
  margin-top: 12px;
  color: var(--ink);
  font-weight: 500;
}

.approved-claim {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 500;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 40px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.button-primary {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
}

.button-primary:hover {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
}

.button-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.information-panel {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.panel-heading {
  padding: 28px 30px 24px;
  border-bottom: 1px solid var(--line);
}

.panel-kicker {
  color: var(--muted);
  font-size: 10px;
}

.panel-heading h2 {
  margin: 6px 0 0;
  font-size: 25px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -0.03em;
}

.information-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.information-list li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 12px;
  padding: 24px 30px;
  border-bottom: 1px solid var(--line);
}

.item-number {
  padding-top: 2px;
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}

.information-list h3 {
  margin: 0 0 4px;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.5;
}

.information-list p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.panel-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 30px;
  background: var(--soft);
  font-size: 12px;
}

.panel-status span {
  color: var(--muted);
}

.panel-status strong {
  font-weight: 500;
  text-align: right;
}

.purpose {
  padding: 96px 0 112px;
  color: #fff;
  background: var(--ink);
}

.purpose-grid {
  display: grid;
  grid-template-columns: 0.5fr 1.5fr;
  gap: 48px;
}

.purpose .section-label {
  color: #93e6b6;
}

.purpose h2 {
  max-width: 760px;
  margin: 0 0 24px;
  font-size: clamp(34px, 4vw, 54px);
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: -0.045em;
}

.purpose p:not(.section-label) {
  max-width: 740px;
  margin: 0;
  color: #bdc9c2;
}

.site-footer {
  padding: 28px 0;
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: 12px;
}

.footer-inner p {
  margin: 0;
}

.error-body {
  min-height: 100vh;
}

.error-header-inner {
  grid-template-columns: 1fr auto;
}

.error-main {
  display: flex;
  min-height: calc(100vh - 227px);
  align-items: center;
  padding: 72px 0 88px;
}

.error-layout {
  display: grid;
  grid-template-columns: minmax(240px, 0.8fr) minmax(360px, 1fr);
  align-items: center;
  gap: clamp(48px, 10vw, 144px);
}

.error-code {
  color: var(--soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: clamp(132px, 20vw, 280px);
  font-weight: 500;
  line-height: 0.82;
  letter-spacing: -0.09em;
}

.error-copy h1 {
  margin: 20px 0 24px;
  font-size: clamp(48px, 6vw, 76px);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.055em;
}

.error-copy > p:not(.eyebrow) {
  max-width: 520px;
  margin: 0 0 32px;
  color: var(--muted);
}

.error-footer {
  margin-top: auto;
}

.article-main,
.knowledge-main {
  background: var(--page);
}

.article-layout {
  padding-top: 72px;
  padding-bottom: 112px;
}

.article-header {
  max-width: 900px;
  margin-bottom: 56px;
}

.article-header h1,
.knowledge-intro h1 {
  margin: 20px 0 24px;
  font-size: clamp(46px, 6vw, 74px);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.055em;
}

.article-deck {
  max-width: 780px;
  margin: 0;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.75;
}

.review-state {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 18px;
  margin-top: 32px;
  padding: 18px 22px;
  border: 1px solid #b8d6c4;
  border-radius: 12px;
  color: #315a42;
  background: #eaf5ed;
  font-size: 14px;
}

.review-state strong {
  font-weight: 600;
}

.review-state.is-blocked {
  border-color: #e6c99d;
  color: #70491b;
  background: #fbf1e2;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.article-meta div {
  display: flex;
  gap: 6px;
}

.article-meta dt,
.article-meta dd {
  margin: 0;
}

.article-meta code,
.article-body code {
  overflow-wrap: anywhere;
}

.article-meta dt {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.article-grid {
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(240px, 1fr);
  align-items: start;
  gap: clamp(48px, 8vw, 104px);
}

.article-body {
  padding: 2px 0;
}

.article-body h2 {
  margin: 64px 0 20px;
  padding-top: 8px;
  font-size: 32px;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.035em;
}

.article-body h2:first-child {
  margin-top: 0;
}

.article-body h3 {
  margin: 36px 0 12px;
  font-size: 21px;
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.02em;
}

.article-body p,
.article-body li {
  color: #314139;
}

.article-body p {
  margin: 0 0 22px;
}

.article-body ul {
  margin: 0 0 28px;
  padding-left: 1.2em;
}

.article-body li {
  margin-bottom: 8px;
  padding-left: 4px;
}

.article-body a {
  color: var(--accent-dark);
  text-decoration: underline;
  text-decoration-color: rgba(8, 122, 75, 0.32);
  text-underline-offset: 4px;
}

.article-body code {
  padding: 0.14em 0.38em;
  border-radius: 5px;
  color: #294438;
  background: var(--soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.86em;
}

.source-ref {
  display: inline-flex;
  margin-left: 3px;
  color: var(--accent-dark);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.72em;
  vertical-align: super;
}

.article-aside {
  position: sticky;
  top: 28px;
  display: grid;
  gap: 16px;
}

.aside-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.aside-card h2 {
  margin: 8px 0 16px;
  font-size: 19px;
  font-weight: 500;
  line-height: 1.45;
}

.aside-card ol,
.aside-card ul {
  margin: 0;
  padding-left: 1.25em;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.aside-card li + li {
  margin-top: 7px;
}

.source-card ul {
  padding: 0;
  list-style: none;
}

.source-card a {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 4px;
}

.source-card a:hover {
  color: var(--accent);
}

.source-card a span {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
}

.article-next {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 72px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.article-next a:hover,
.text-link:hover {
  color: var(--accent);
}

.knowledge-intro {
  padding: 80px 0 88px;
}

.knowledge-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.7fr);
  align-items: end;
  gap: clamp(48px, 9vw, 128px);
}

.knowledge-intro h1 {
  margin-bottom: 0;
}

.knowledge-intro-copy > p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.knowledge-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 32px 0 0;
}

.knowledge-stats div {
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.knowledge-stats dt {
  color: var(--muted);
  font-size: 11px;
}

.knowledge-stats dd {
  margin: 2px 0 0;
  font-size: 25px;
  font-weight: 500;
}

.knowledge-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding-bottom: 104px;
}

.knowledge-card {
  display: flex;
  min-height: 340px;
  flex-direction: column;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color 160ms ease, transform 160ms ease;
}

.knowledge-card:hover {
  border-color: #b8c9bf;
  transform: translateY(-2px);
}

.knowledge-card.is-blocked {
  background: #fdf9f3;
}

.knowledge-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.status-chip {
  padding: 4px 9px;
  border-radius: 999px;
  color: #476052;
  background: var(--soft);
  font-size: 11px;
  line-height: 1.5;
}

.is-blocked .status-chip {
  color: #70491b;
  background: #f5e6ce;
}

.knowledge-card h2 {
  margin: 58px 0 16px;
  font-size: 29px;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.035em;
}

.knowledge-card h2 a::after {
  position: absolute;
  content: "";
}

.knowledge-card > p {
  margin: 0 0 30px;
  color: var(--muted);
  font-size: 15px;
}

.text-link {
  margin-top: auto;
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 500;
}

.knowledge-method {
  padding: 88px 0 96px;
  color: #fff;
  background: var(--ink);
}

.knowledge-method .section-label {
  color: #93e6b6;
}

.knowledge-method h2 {
  max-width: 760px;
  margin: 0 0 24px;
  font-size: clamp(34px, 4vw, 54px);
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: -0.045em;
}

.knowledge-method p:not(.section-label) {
  max-width: 740px;
  margin: 0;
  color: #bdc9c2;
}

.site-map-section {
  padding: 96px 0 104px;
  background: var(--surface);
}

.site-map-heading {
  display: grid;
  grid-template-columns: 0.5fr 1.5fr;
  gap: 48px;
  margin-bottom: 48px;
}

.site-map-heading h2 {
  margin: 0 0 18px;
  font-size: clamp(34px, 4vw, 54px);
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: -0.045em;
}

.site-map-heading p:not(.section-label) {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
}

.site-map-heading .claim-dependency-note {
  margin-top: 14px;
  font-size: 12px;
}

.claim-dependency-note code {
  margin-right: 4px;
  color: var(--accent-dark);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.site-map-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.site-map-grid a {
  display: grid;
  min-height: 190px;
  align-content: start;
  padding: 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: color 160ms ease, background-color 160ms ease;
}

.site-map-grid a:hover {
  color: var(--accent-dark);
  background: var(--soft);
}

.site-map-grid span {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
}

.site-map-grid strong {
  margin-top: 38px;
  font-size: 21px;
  font-weight: 500;
}

.site-map-grid small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
}

.category-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.category-links a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
}

.category-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.outline-hero {
  padding: 72px 0 64px;
  border-bottom: 1px solid var(--line);
}

.outline-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
  align-items: end;
  gap: clamp(48px, 9vw, 128px);
}

.outline-hero h1 {
  max-width: 760px;
  margin: 20px 0 0;
  font-size: clamp(46px, 5.8vw, 72px);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.055em;
}

.outline-summary > p {
  margin: 0;
  color: var(--muted);
}

.outline-summary .question-label {
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.outline-summary .primary-question {
  margin: 6px 0 20px;
  color: var(--ink);
  font-size: 23px;
  font-weight: 500;
  line-height: 1.45;
}

.outline-grid {
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(260px, 1fr);
  align-items: start;
  gap: clamp(48px, 8vw, 104px);
  padding-top: 72px;
  padding-bottom: 48px;
}

.outline-body {
  border-top: 1px solid var(--line);
}

.outline-section {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}

.outline-section h2 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 500;
  line-height: 1.4;
}

.outline-section p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.claim-panel {
  position: sticky;
  top: 28px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.claim-panel h2 {
  margin: 8px 0 22px;
  font-size: 24px;
  font-weight: 500;
}

.claim-panel dl {
  margin: 0;
}

.claim-panel dl div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.claim-panel dt {
  color: var(--muted);
}

.claim-panel dd {
  margin: 0;
  font-weight: 500;
}

.claim-panel h3 {
  margin: 26px 0 10px;
  font-size: 14px;
  font-weight: 600;
}

.claim-panel ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.claim-panel li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px;
  padding: 8px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
}

.claim-panel code {
  color: var(--accent-dark);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.route-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  padding-bottom: 104px;
}

.route-links a {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--muted);
  font-size: 14px;
}

.route-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

@media (max-width: 900px) {
  .header-inner {
    grid-template-columns: 1fr auto;
  }

  .desktop-nav {
    grid-column: 1 / -1;
    gap: 24px;
    overflow-x: auto;
    padding-bottom: 12px;
    scrollbar-width: none;
    white-space: nowrap;
  }

  .desktop-nav::-webkit-scrollbar {
    display: none;
  }

  .hero {
    padding: 64px 0 80px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    grid-template-areas: "copy" "media" "panel";
    gap: 56px;
  }

  .information-panel {
    max-width: 680px;
  }

  .purpose-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .error-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .error-code {
    font-size: clamp(120px, 28vw, 220px);
  }

  .article-grid,
  .knowledge-intro-grid,
  .outline-hero-grid,
  .outline-grid {
    grid-template-columns: 1fr;
  }

  .outline-visuals.has-supporting {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  }

  .article-grid {
    gap: 56px;
  }

  .article-aside {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-map-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .claim-panel {
    position: static;
  }
}

@media (max-width: 560px) {
  .shell {
    width: min(calc(100% - 32px), var(--shell));
  }

  .preview-bar {
    min-height: 44px;
    padding-inline: 16px;
    text-align: center;
  }

  .header-inner {
    min-height: 74px;
  }

  .brand-cn {
    font-size: 23px;
  }

  .brand-en {
    display: none;
  }

  .header-action {
    font-size: 13px;
  }

  .desktop-nav {
    gap: 20px;
    font-size: 13px;
  }

  .hero {
    padding: 56px 0 72px;
  }

  .hero-grid {
    gap: 48px;
    grid-template-areas: "copy" "media" "panel";
  }

  .home-hero-media,
  .outline-visuals {
    margin-top: 36px;
  }

  .outline-visuals.has-supporting {
    grid-template-columns: 1fr;
  }

  .outline-supporting-picture img {
    aspect-ratio: 4 / 3;
  }

  .hero h1 {
    margin: 18px 0 24px;
    font-size: 42px;
    line-height: 1.13;
    letter-spacing: -0.05em;
  }

  .hero h1 br:last-of-type {
    display: none;
  }

  .hero-lead {
    font-size: 16px;
    line-height: 1.75;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    margin-top: 32px;
  }

  .button {
    width: 100%;
  }

  .panel-heading,
  .information-list li,
  .panel-status {
    padding-right: 22px;
    padding-left: 22px;
  }

  .information-list li {
    grid-template-columns: 34px 1fr;
    gap: 8px;
  }

  .panel-status {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
  }

  .panel-status strong {
    text-align: left;
  }

  .purpose {
    padding: 72px 0 80px;
  }

  .purpose h2 {
    font-size: 35px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .error-main {
    min-height: auto;
    padding: 56px 0 72px;
  }

  .error-layout {
    gap: 32px;
  }

  .error-code {
    font-size: 116px;
  }

  .error-copy h1 {
    margin-top: 16px;
    font-size: 42px;
  }

  .error-copy .button {
    width: 100%;
  }

  .article-layout {
    padding-top: 52px;
    padding-bottom: 72px;
  }

  .article-header {
    margin-bottom: 42px;
  }

  .article-header h1,
  .knowledge-intro h1 {
    font-size: 42px;
  }

  .article-deck {
    font-size: 17px;
  }

  .review-state {
    grid-template-columns: 1fr;
  }

  .article-body h2 {
    margin-top: 48px;
    font-size: 28px;
  }

  .article-aside,
  .knowledge-list {
    grid-template-columns: 1fr;
  }

  .article-next {
    align-items: flex-start;
    flex-direction: column;
  }

  .knowledge-intro {
    padding: 56px 0 64px;
  }

  .knowledge-stats {
    gap: 10px;
  }

  .knowledge-stats dd {
    font-size: 22px;
  }

  .knowledge-list {
    padding-bottom: 72px;
  }

  .knowledge-card {
    min-height: 300px;
    padding: 24px;
  }

  .knowledge-card h2 {
    margin-top: 44px;
    font-size: 26px;
  }

  .knowledge-method {
    padding: 72px 0 80px;
  }

  .site-map-section {
    padding: 72px 0 80px;
  }

  .site-map-heading,
  .site-map-grid,
  .route-links {
    grid-template-columns: 1fr;
  }

  .site-map-heading {
    gap: 20px;
  }

  .site-map-grid a {
    min-height: 156px;
  }

  .outline-hero {
    padding: 52px 0 48px;
  }

  .outline-hero h1 {
    font-size: 42px;
  }

  .outline-summary .primary-question {
    font-size: 20px;
  }

  .outline-grid {
    padding-top: 48px;
  }

  .outline-section {
    grid-template-columns: 36px 1fr;
  }

  .route-links {
    padding-bottom: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}

/* Visitor layout: remove the internal review sidebar without leaving an empty column. */
.outline-grid { grid-template-columns: minmax(0, 840px); justify-content: center; }

/* Photo-led brand pages: scoped additions; existing knowledge articles remain intact. */
.refresh-main { background: #fff; }
.refresh-main h1,.refresh-main h2,.refresh-main h3 { line-height: 1.25; letter-spacing: -.025em; margin: 0 0 20px; text-wrap: balance; }
.refresh-main h2 { font-size: clamp(30px,3.3vw,46px); }
.refresh-main h3 { font-size: 23px; }
.refresh-main p { margin: 0 0 20px; }
.refresh-main .eyebrow { font-size: 12px; letter-spacing: .15em; color: #347358; }
.refresh-main picture { display: block; }
.refresh-main picture img { display: block; width: 100%; height: 100%; object-fit: cover; }
.refresh-block { padding-block: 96px; }
.refresh-heading { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 36px; }
.refresh-heading p { max-width: 470px; color: var(--muted); }
.refresh-link { display: inline-block; color: #075f3c; text-decoration: underline; text-underline-offset: 6px; font-weight: 600; }
.refresh-hero { display: grid; grid-template-columns: 37% 63%; background: #e6eddd; }
.refresh-hero-copy { align-self: center; padding: 64px 32px 64px max(24px,calc((100vw - 1184px)/2)); }
.refresh-hero h1 { font-size: clamp(38px,4.25vw,62px); margin-bottom: 26px; }
.refresh-hero-copy>p { max-width: 340px; }
.refresh-hero>picture { height: 610px; }
.refresh-hero>picture img { object-position: 44% center; }
.refresh-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.refresh-actions .button { min-height: 48px; padding: 12px 22px; }
.refresh-ribbon { background: #123d2d; color: #fff; padding: 22px 0; }
.refresh-ribbon .shell { display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.refresh-ribbon p { margin: 0; }
.refresh-ribbon a { flex-shrink: 0; text-decoration: underline; text-underline-offset: 5px; }
.refresh-ribbon small { color: #d1e3d3; display: block; font-size: 12px; }
.collection-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 20px; }
.collection-tile { display: block; }
.collection-tile picture { height: 365px; overflow: hidden; background: #edf1e9; }
.collection-tile img { transition: transform .35s ease; }
.collection-tile:hover img { transform: scale(1.025); }
.collection-tile h3 { display: flex; justify-content: space-between; margin: 20px 0 8px; }
.collection-tile p { font-size: 15px; color: var(--muted); }
.proof-strip { border-block: 1px solid #dce4de; display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 40px; padding-block: 36px; }
.proof-strip strong { font-size: 24px; display: block; line-height: 1.5; }
.proof-strip p { font-size: 14px; color: #516257; margin: 10px 0 0; }
.paper-band { background: #eff3e9; }
.paper-feature { display: grid; grid-template-columns: 1.15fr 1fr; gap: 56px; align-items: center; }
.paper-cover { display: block; width: 100%; height: auto; box-shadow: 0 18px 45px #183d2c18; }
.paper-feature h2 { max-width: 440px; }
.paper-feature .paper-note { font-size: 13px; color: #56665b; margin-top: 22px; }
.story-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.story-pair .story-photo img { max-height: 540px; object-fit: cover; }
.kbao-welcome { display: grid; grid-template-columns: 210px 1fr auto; gap: 40px; align-items: center; padding: 44px; background: #f7f5e9; }
.kbao-welcome img { display: block; width: 100%; max-height: 240px; object-fit: contain; }
.kbao-welcome h2 { font-size: 34px; }
.kbao-welcome p { max-width: 540px; }
.refresh-nav { display: flex; flex-wrap: wrap; gap: 24px; padding-block: 26px; border-bottom: 1px solid var(--line); font-size: 15px; }
.refresh-nav [aria-current] { color: var(--accent-dark); font-weight: 700; text-decoration: underline; text-underline-offset: 7px; }
.collection-hero { display: grid; grid-template-columns: 1fr 1.2fr; gap: 64px; align-items: center; padding-block: 56px; }
.collection-hero h1 { font-size: clamp(40px,4.2vw,60px); }
.collection-hero picture { height: 515px; }
.collection-hero picture img { object-fit: contain; background: #eef2eb; }
.collection-hero p { color: #4e6256; }
.gallery-intro { max-width: 780px; }
.gallery-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 36px 24px; }
.gallery-grid figure { margin: 0; min-width: 0; }
.gallery-grid picture { height: 440px; background: #f2f4ef; }
.gallery-grid picture img { object-fit: contain; }
.gallery-grid figcaption { margin-top: 12px; font-size: 14px; color: #53665a; }
.gallery-grid a { display: block; }
.collection-note { display: grid; grid-template-columns: 130px 1fr; gap: 30px; background: #eff3e9; padding: 28px; align-items: center; margin-top: 42px; }
.collection-note img { width: 130px; height: 145px; object-fit: contain; }
.collection-note p { margin: 8px 0 0; }
.collection-notes { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 40px; }
.collection-notes p { font-size: 16px; color: #53665a; }
.refresh-footnote { font-size: 13px; color: #526056; margin-top: 24px !important; }
.proof-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 48px 32px; }
.proof-card { display: grid; grid-template-columns: 180px 1fr; gap: 24px; border-top: 1px solid var(--line); padding-top: 28px; }
.proof-card img { width: 180px; height: 255px; object-fit: contain; }
.proof-card h3 { font-size: 23px; }
.proof-card p { font-size: 14px; }
.proof-card small { display: block; font-size: 12px; line-height: 1.7; color: #526056; }
.award-feature { border: 1px solid #d8ded1; background: #fafaf4; padding: 40px; display: grid; grid-template-columns: 160px 1fr; gap: 36px; align-items: center; }
.award-year { font-size: 54px; font-weight: 750; color: #42634d; line-height: 1.1; }
.award-year small { font-size: 16px; display: block; margin-top: 12px; }
.research-head { padding-top: 64px; padding-bottom: 64px; }
.research-head h1 { font-size: clamp(38px,4vw,56px); max-width: 780px; }
.research-head .paper-cover { margin-top: 36px; }
.research-chapters { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.research-chapters article { border-top: 1px solid var(--line); padding-top: 26px; }
.research-chapters .chapter-number { display: block; color: #327b51; font-size: 34px; margin-bottom: 18px; }
.insight-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 32px; }
.insight-grid strong { font-size: 52px; color: #276440; }
.insight-grid h3 { font-size: 21px; }
.insight-grid p { font-size: 15px; }
.research-faq details { border-bottom: 1px solid var(--line); padding: 22px 0; }
.research-faq summary { cursor: pointer; font-weight: 650; }
.research-faq details p { margin: 18px 0 0; }
.refresh-main a:focus-visible { outline: 3px solid #087a4b; }
.site-header .desktop-nav a { white-space: nowrap; }
.site-header .desktop-nav { gap: 22px; }
.site-header .header-action { white-space: nowrap; }
@media (max-width:1000px) {
  .refresh-hero { grid-template-columns: 42% 58%; }
  .refresh-hero>picture { height: 540px; }
  .refresh-hero-copy { padding: 36px 24px; }
  .collection-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .collection-tile picture { height: 440px; }
  .paper-feature,.story-pair { gap: 32px; }
  .gallery-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .proof-grid { grid-template-columns: 1fr; }
  .kbao-welcome { grid-template-columns: 150px 1fr; padding: 32px; }
  .kbao-welcome>a { grid-column: 2; }
  .collection-hero { gap: 32px; }
  .site-header .header-inner { grid-template-columns: 1fr auto; }
  .site-header .desktop-nav { grid-column: 1/-1; grid-row: 2; justify-content: center; padding: 8px 0 16px; }
}
@media (max-width:600px) {
  .refresh-block { padding-block: 60px; }
  .refresh-hero { display: flex; flex-direction: column; }
  .refresh-hero-copy { width: 100%; padding: 36px 24px; }
  .refresh-hero h1 { font-size: 42px; }
  .refresh-hero .refresh-actions .button { width: auto; flex: 1; padding-inline: 12px; font-size: 14px; }
  .refresh-hero>picture { width: 100%; height: 335px; }
  .refresh-hero>picture img { object-position: center; }
  .refresh-ribbon .shell { display: block; }
  .refresh-ribbon a { display: inline-block; margin-top: 12px; }
  .refresh-heading { display: block; margin-bottom: 26px; }
  .collection-grid { gap: 28px 14px; }
  .collection-tile picture { height: 255px; }
  .collection-tile h3 { font-size: 21px; }
  .collection-tile p { font-size: 13px; }
  .proof-strip,.paper-feature,.story-pair,.collection-hero,.collection-notes,.research-chapters,.insight-grid { grid-template-columns: 1fr; }
  .proof-strip { gap: 24px; }
  .paper-feature { gap: 32px; }
  .collection-hero { padding-block: 36px; }
  .collection-hero picture { height: 410px; }
  .gallery-grid { grid-template-columns: 1fr; gap: 30px; }
  .gallery-grid picture { height: auto; }
  .gallery-grid picture img { height: auto; max-height: 650px; }
  .kbao-welcome { display: block; padding: 28px; }
  .kbao-welcome img { width: 150px; margin: 0 auto 24px; }
  .kbao-welcome h2 { font-size: 29px; }
  .collection-note { grid-template-columns: 85px 1fr; padding: 18px; gap: 16px; font-size: 14px; }
  .collection-note img { width: 85px; height: 110px; }
  .proof-card { grid-template-columns: 120px 1fr; gap: 20px; }
  .proof-card img { width: 120px; height: 175px; }
  .proof-card h3 { font-size: 20px; }
  .award-feature { grid-template-columns: 1fr; padding: 28px; }
  .research-head { padding-block: 40px; }
  .insight-grid { gap: 20px; }
  .site-header .desktop-nav { display: flex; gap: 18px; flex-wrap: wrap; font-size: 14px; }
}
@media (prefers-reduced-motion:reduce) { .collection-tile img { transition: none; } }

/* Review fixes: preserve the established visual language and usable small screens. */
.desktop-nav [aria-current] { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 6px; }
.article-toc ol { margin: 0; padding-left: 22px; }
.article-toc li { margin-block: 10px; }
.article-toc a { text-decoration: underline; text-underline-offset: 4px; }
.chapter-reading-note { border-top: 1px solid var(--line); padding-top: 16px; color: var(--muted); font-size: 15px; }
.refresh-nav a { min-height: 44px; display: inline-flex; align-items: center; }
.proof-card>div, .research-chapters article, .collection-tile { min-width: 0; }
.proof-card small, .award-feature p { overflow-wrap: anywhere; }
:target { scroll-margin-top: 24px; }
.title-phrase { white-space: nowrap; }
@media(max-width:1100px) {
  .site-header .header-inner { grid-template-columns: 1fr auto; }
  .site-header .desktop-nav { grid-column: 1/-1; grid-row: 2; justify-content: center; flex-wrap: wrap; padding: 8px 0 16px; }
}
@media(max-width:480px) {
  .proof-card { grid-template-columns: 1fr; gap: 24px; }
  .proof-card>a { width: fit-content; }
  .proof-card img { width: 168px; height: 238px; }
  .proof-card h3 { font-size: 23px; }
  .site-header .desktop-nav { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 0 12px; width: 100%; }
  .site-header .desktop-nav a { justify-content: center; }
  .collection-tile h3 { font-size: 19px; gap: 4px; }
  .collection-tile h3 span { flex-shrink: 0; }
  .refresh-hero h1 { font-size: clamp(34px,10.5vw,42px); }
  .refresh-hero .refresh-actions .button { flex-basis: 100%; }
  .refresh-nav { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 4px 16px; }
}

/* Keep the complete commissioned photo, including on narrow screens and hover. */
.refresh-main picture[data-image-asset-id],
.outline-visuals picture[data-image-asset-id],
.home-hero-media picture[data-image-asset-id] {
  width: 100%;
  height: auto;
  max-height: none;
  align-self: center;
  overflow: visible;
}
.refresh-main picture[data-image-asset-id] img,
.outline-visuals.has-supporting picture[data-image-asset-id] img,
.outline-visuals picture[data-image-asset-id] img,
.home-hero-media picture[data-image-asset-id] img {
  width: 100%;
  height: auto;
  max-height: none;
  aspect-ratio: auto;
  object-fit: contain;
  object-position: center;
  transform: none;
}
.collection-tile img { transition: none; }
.research-chapters .refresh-link { margin-top: 8px; }

/* Preserve PDF page geometry. Reader controls never change the report itself. */
.original-reader{max-width:1280px;margin:0 auto;padding:24px 24px 48px}
.original-reader h1{font-size:24px;line-height:1.5;margin:8px 0 16px}
.original-tools{margin-bottom:24px}.original-tools p{font-size:14px;line-height:1.7}
.original-tools nav{display:flex;flex-wrap:wrap;gap:6px}
.original-tools nav a{display:grid;place-items:center;width:36px;height:36px;border:1px solid #d6e0d6;color:#145a3b;border-radius:3px;font-size:14px}
.original-page{margin:0 0 28px;scroll-margin-top:100px}
.original-sheet{position:relative;width:100%;aspect-ratio:16/9;container-type:inline-size;background:white}
.original-sheet img{display:block;width:100%;height:100%;aspect-ratio:16/9;object-fit:contain;transform:none}
.original-text{position:absolute;inset:0;overflow:hidden}
.original-text span{position:absolute;white-space:pre;line-height:1;color:transparent;cursor:text;font-family:Arial,'Microsoft YaHei',sans-serif;transform:none;letter-spacing:0;user-select:text}
.original-text span::selection{color:transparent;background:rgba(35,109,230,.28)}
.original-page figcaption{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:8px 0;color:#52675d;font-size:13px;line-height:1.6}
.original-reader a{color:#145a3b;text-underline-offset:3px}.original-page a{min-height:32px;display:inline-flex;align-items:center}
@media(max-width:600px){.original-reader{padding:16px 8px 32px}.original-reader h1{font-size:20px}.original-tools{padding:0 8px}.original-page{scroll-margin-top:82px;margin-bottom:20px}}
@media print{.site-header,.site-footer,.original-tools,.original-page figcaption{display:none}.original-reader{max-width:none;padding:0}.original-page{break-after:page;margin:0}}

/* Owner-provided awards: complete certificates, with readable HTML facts. */
.awards-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 32px; }
.awards-heading h2 { margin-bottom: 8px; }
.awards-heading p { margin-bottom: 0; }
.award-gallery { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px 24px; }
.award-entry { min-width: 0; scroll-margin-top: 120px; }
.award-certificate { display: flex; align-items: center; justify-content: center; background: #f4f5ef; padding: 16px; border: 1px solid #d8ded1; }
.award-certificate img { width: auto; max-width: 100%; height: 320px; object-fit: contain; transform: none; }
.award-details { padding: 24px 0 8px; overflow-wrap: anywhere; }
.award-details h3 { font-size: 24px; line-height: 1.3; margin: 0 0 12px; }
.award-details p { margin: 0 0 12px; }
.award-details dl { margin: 16px 0; font-size: 15px; line-height: 1.65; }
.award-details dt { color: #5d6e62; margin-top: 12px; }
.award-details dd { margin: 0; }
.award-entry-featured { display: grid; grid-template-columns: minmax(240px, 360px) 1fr; align-items: center; gap: 48px; margin: 32px 0 48px; }
.award-entry-featured .award-certificate img { height: auto; width: 100%; }
.award-entry-featured .award-details h3 { font-size: 36px; }
.award-existing { margin-top: 48px; }
.award-selection { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.award-selected { display: grid; grid-template-columns: 96px 1fr; gap: 20px; align-items: center; color: inherit; text-decoration: none; padding: 24px 0; border-top: 1px solid #cdd7ca; min-width: 0; }
.award-selected img { width: 96px; height: auto; object-fit: contain; transform: none; }
.award-selected h3 { font-size: 20px; line-height: 1.4; margin: 8px 0; }
.award-selected p { font-size: 15px; margin: 0; overflow-wrap: anywhere; }
.award-selected:hover h3 { text-decoration: underline; text-underline-offset: 4px; }
@media (max-width: 1000px) {
  .award-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .award-selection { grid-template-columns: 1fr; gap: 8px; }
  .award-selected { grid-template-columns: 80px 1fr; padding: 16px 0; }
  .award-selected img { width: 80px; }
}
@media (max-width: 600px) {
  .awards-heading { display: block; }
  .awards-heading > a { display: inline-block; margin-top: 16px; }
  .award-gallery, .award-entry-featured { grid-template-columns: 1fr; gap: 24px; }
  .award-entry-featured { margin: 24px 0 32px; }
  .award-entry-featured .award-certificate { max-width: 360px; width: 100%; margin: auto; }
  .award-entry-featured .award-details h3 { font-size: 28px; }
  .award-certificate img { height: auto; width: 100%; }
  .award-details { padding-top: 16px; }
}